Pressure induced Ag2Te polymorphs in conjunction with topological non trivial to metal transition

Zhu, J.; Oganov, A. R.; Feng, W. X.; Yao, Y. G.; Zhang, S. J.; Yu, X. H.; Zhu, J. L.; Yu, R. C.; Jin, C. Q.; Dai, X.; Fang, Z.; Zhao, Y. S.

doi:10.1063/1.4960606

Title: Pressure induced Ag₂Te polymorphs in conjunction with topological non trivial to metal transition

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Abstract

Silver telluride (Ag₂Te) is well known as superionic conductor and topologica insulator with polymorphs. Pressure induced three phase transitions in Ag₂Te hav been reported in previous. Here, we experimentally identified high pressure phas above 13 GPa of Ag₂Te by using high pressure synchrotron x ray diffraction metho in combination with evolutionary crystal structure prediction, showing it crystallize into a monoclinic structure of space group C2/m with lattice parameters a = 6.081Å b = 5.744Å, c = 6.797 Å, β = 105.53°. The electronic properties measurements of Ag₂Te reveal that the topologically non-trivial semiconducting phase I and semimetalli phase II previously predicated by theory transformed into bulk metals fo high pressure phases in consistent with the first principles calculations

Authors:

Zhu, J. ^[1]; Oganov, A. R. ^[2]; Feng, W. X. ^[3]; Yao, Y. G. ^[3]; Zhang, S. J. ^[1]; Yu, X. H. ^[1]; Zhu, J. L. ^[4]; Yu, R. C. ^[5]; Jin, C. Q. ^[1]; Dai, X. ^[1]; Fang, Z. ^[1]; Zhao, Y. S. ^[6]

Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics
State Univ. of New York (SUNY), Stony Brook, NY (United States). Dept. of Geosciences
Beijing Inst. of Technology, Beijing (China). Dept. of Physics
Univ. of Nevada, Las Vegas, NV (United States). High Pressure Science and Engineering Center
Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics; south Univ. of Science adn Technology of China, Guangdong (China)

Publication Date:: Mon Aug 01 00:00:00 EDT 2016

Research Org.:: Univ. of Nevada, Las Vegas, NV (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1332391

Grant/Contract Number:: NA0001982

Resource Type:: Accepted Manuscript

Journal Name:: AIP Advances

Additional Journal Information:: Journal Volume: 6; Journal Issue: 8; Journal ID: ISSN 2158-3226

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Zhu, J., Oganov, A. R., Feng, W. X., Yao, Y. G., Zhang, S. J., Yu, X. H., Zhu, J. L., Yu, R. C., Jin, C. Q., Dai, X., Fang, Z., and Zhao, Y. S. Pressure induced Ag2Te polymorphs in conjunction with topological non trivial to metal transition.  United States: N. p., 2016. 
Web.  doi:10.1063/1.4960606.

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                    Zhu, J., Oganov, A. R., Feng, W. X., Yao, Y. G., Zhang, S. J., Yu, X. H., Zhu, J. L., Yu, R. C., Jin, C. Q., Dai, X., Fang, Z., & Zhao, Y. S. Pressure induced Ag2Te polymorphs in conjunction with topological non trivial to metal transition.  United States.  https://doi.org/10.1063/1.4960606

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                    Zhu, J., Oganov, A. R., Feng, W. X., Yao, Y. G., Zhang, S. J., Yu, X. H., Zhu, J. L., Yu, R. C., Jin, C. Q., Dai, X., Fang, Z., and Zhao, Y. S. Mon .  
"Pressure induced Ag2Te polymorphs in conjunction with topological non trivial to metal transition".  United States.  https://doi.org/10.1063/1.4960606.  https://www.osti.gov/servlets/purl/1332391.

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@article{osti_1332391,

  title        = {Pressure induced Ag2Te polymorphs in conjunction with topological non trivial to metal transition},

  author       = {Zhu, J. and Oganov, A. R. and Feng, W. X. and Yao, Y. G. and Zhang, S. J. and Yu, X. H. and Zhu, J. L. and Yu, R. C. and Jin, C. Q. and Dai, X. and Fang, Z. and Zhao, Y. S.},

  abstractNote = {Silver telluride (Ag2Te) is well known as superionic conductor and topologica insulator with polymorphs. Pressure induced three phase transitions in Ag2Te hav been reported in previous. Here, we experimentally identified high pressure phas above 13 GPa of Ag2Te by using high pressure synchrotron x ray diffraction metho in combination with evolutionary crystal structure prediction, showing it crystallize into a monoclinic structure of space group C2/m with lattice parameters a = 6.081Å b = 5.744Å, c = 6.797 Å, β = 105.53°. The electronic properties measurements of Ag2Te reveal that the topologically non-trivial semiconducting phase I and semimetalli phase II previously predicated by theory transformed into bulk metals fo high pressure phases in consistent with the first principles calculations},

  doi          = {10.1063/1.4960606},

  journal      = {AIP Advances},

  number       = 8,

  volume       = 6,

  place        = {United States},

  year         = {Mon Aug 01 00:00:00 EDT 2016},

  month        = {Mon Aug 01 00:00:00 EDT 2016}

}

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Title: Pressure induced Ag2Te polymorphs in conjunction with topological non trivial to metal transition

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Title: Pressure induced Ag₂Te polymorphs in conjunction with topological non trivial to metal transition